Solar battery backup keeps a Jamaican home running silently through every JPS outage — fridge cold, fans on, WiFi up — by storing daytime solar in a lithium battery that takes over in milliseconds when the grid drops. A complete battery-backed system starts at about J$1.14M installed from BTECH.
How solar battery backup works
A hybrid inverter sits between your panels, a lithium battery and the JPS grid. During the day, your panels power the house and charge the battery. When an outage hits, the inverter switches your circuits to the battery so fast — milliseconds — that computers and routers never reboot. There is no starting, no fuel, no noise: the first sign of a blackout is your neighbours’ generators coughing to life while your lights stay on.
What it costs in Jamaica (2026)
The three core parts, from BTECH’s Ocho Rios stock:
- Hybrid inverter: 6kW at J$220,000, up to 12kW Deye at J$430,000
- Lithium battery: 10kWh at J$360,000, 16kWh at J$395,000
- Panels: 605W bi-facial at J$25,000 each
A typical battery-backed home system lands around J$1.14M installed, and — against JPS rates historically equivalent to US$0.30–0.40 per kWh — cuts the bill 70–90% while paying for itself in roughly 3–5 years.
Sizing your backup honestly
List what must stay on and for how long. A 10kWh battery carries typical essentials — fridge, fans, lights, router, TV — through the night; homes running air conditioning after dark step up to 16kWh or two batteries. Our free solar calculator turns your appliance list into the right battery and inverter size in minutes.
Battery backup vs a generator
A generator is pure insurance that costs fuel every running hour and announces every outage to the street. A solar battery is silent, fuel-free, and — once panels are added — earns its keep every ordinary day by slashing your bill, not just during blackouts. Many BTECH customers keep a small generator only as a rare multi-day-storm backstop; it barely runs, so it lasts.
FAQ
How long can a solar battery power my house?
A 10kWh–16kWh lithium battery runs a typical household’s essentials through an overnight outage; sizing adds margin for cloudy stretches. Panels recharge it free the next day.
How fast does it switch over during a blackout?
Milliseconds — sensitive electronics never notice the grid is gone.
What does a battery backup system cost in Jamaica?
From about J$1.14M installed for a 6kW hybrid with one lithium battery and a starter array. Live component prices are at btechj.com/shop.
Ready for silent power through every blackout? Call or WhatsApp BTECH Solar Energy at 876-777-5488, or visit us at Shop 15, Double V Plaza, 109 Main Street, Ocho Rios.
